# 打印 九九 乘法表
# 1x1=1
# 1x2=2 2x2=4
# 1x3=3 2x3=6 3x3=9
# ....
# 1x9=9 ........ 9x9=81

for row in range(1, 10):  # row 行
    for col in range(1, row+1):
        print('%dx%d=%d' % (col, row, col*row), end=' ')
    print()


